Windows

How do I take a screenshot on a Windows PC?

Press  = Windows captures the entire screen and copies it to the clipboard.

Where can I find that key?

 Look for this group of keys at the upper right of your keyboard. Print Screen (Prt Scn) might have been abbreviated differently on  your keyboard.

How do I take a screenshot of a single window?

Hold down  and press  = Windows pastes the screenshot (that is in the clipboard) into a document or images you are currently editing.

Where should I paste it to save it as an image file?

1. Start "Paint"
2. Paste
3. Save

There must be a dedicated program for taking screenshots on Vista and Windows 7. How can I find it?

Visit take-a-screenshot.org.

Mac

How do I take a screenshot on a Mac?

Hold down  and  and press  = Mac OS X captures the entire screen and saves it as a file on the desktop. The file name will look like "Screen shot 2013-11-11 at 08.45.00 AM.png".

How do I take a screenshot of a particular part of the screen?

Hold down  and  and press  = Use your mouse to draw a rectangle in order to specify what to capture - or - press the spacebar and then click on something (e.g. a window) to capture it.

Mac OS X then saves it as a file on the desktop. The file name will look like "Screen shot 2013-11-11 at 08.45.00 AM.png".

I don't need a file. How can I save a screenshot in the clipboard instead?

Hold down  together with any key of the combinations above = Mac OS X takes a screenshot and copies it to the clipboard (instead of saving it as a file).

Once my screenshot is saved in the clipboard, how can I paste it into a document?

Hold down  and press  = Mac OS X pastes the screenshot (that is in the clipboard) into a document or image you are currently editing.

iOS, iPhone, iPad

How do I take a screenshot on a mobile device?

Press at once  and  = The screen flashes white. You iPhone (or iPad touch, or iPad) captures the entire screen and saves it as a photo.

Where do I find my screenshots?

Choose Camera Roll (on an iPhone) or Saved Photos (on an iPod touch, or an iPad).